| 落体法测刚体转动惯量的测量方法比较 |
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| 引用本文： | 郭长立,李三庆.落体法测刚体转动惯量的测量方法比较[J].力学与实践,2005,27(3):69-72. |
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| 作者姓名： | 郭长立 李三庆 |
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| 作者单位： | 西安科技大学基础部,西安,710054;西安工业学院建工系,西安,710032 |
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| 摘 要： | 用JIJG—I刚体转动惯量实验仪的同组数据，分别用测角加速度法和测时间法计算待测圆盘的转动惯量，结果表明，测角加速度法比测时间法的测量精度可提高1到2个数量级，具有明显优点；同时分析了测时间法产生误差的主要原因，也指出了使用测角加速度法的注意事项．
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| 关 键 词： | 转动惯量 角加速度 时间 相对误差 |
| 修稿时间： | 2004年5月21日 |
COMPARISON OF DIFFERENT METHODS OF MEASURING RIGID BODY INERTIA BY THE FALLING BODY LAW |
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| GUO Changli,LI Sanqing.COMPARISON OF DIFFERENT METHODS OF MEASURING RIGID BODY INERTIA BY THE FALLING BODY LAW[J].Mechanics and Engineering,2005,27(3):69-72. |
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| Authors: | GUO Changli LI Sanqing |
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| Abstract: | This paper calculates the inertia of a disc by angular acceleration law and time law, respectively with the data of JIJG-I's rigid body inertia experimental apparatus, and it is indicated that the angular acceleration law gives better results than the time law by 1 to 2 orders of magnitude in precision. The main factors of the time law and the angular acceleration law are pointed out. |
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| Keywords: | rotational inertia angular acceleration time the relative error |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
